.flex{
    display: flex;
}
.column{
    flex-direction: column;
}

.row{
    flex-direction: row;
}
.just-center{
    justify-content: center;
}
.just-between{
    justify-content: space-between;
}
.align-center{
    align-items: center;
}


.w-100{
    width: 100%;
}
.pad-20{
    padding: 20px;
}
.mt-100{
    margin-top: 100px;
}